Results 101 to 110 of about 123,391 (326)

Scale mixtures of Kotz–Dirichlet distributions

open access: yesJournal of Multivariate Analysis, 2013
AbstractIn this paper, we first show that a k-dimensional Dirichlet random vector has independent components if and only if it is a Kotz Type I Dirichlet random vector. We then consider in detail the class of k-dimensional scale mixtures of Kotz–Dirichlet random vectors, which is a natural extension of the class of Kotz Type I random vectors.
N. Balakrishnan 0002, Enkelejd Hashorva
openaire   +1 more source

Comparison of modelling approaches for liquid fluidized beds

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract This study presents a comparison of three promising numerical models for the detailed simulation of liquid–solid fluidized bed. These models differ in their treatment of the solid phase, ranging from treating each particle individually to treating the collection of particles as a continuum.
Andreu Bernad‐Serra   +3 more
wiley   +1 more source

FedArtML: A Tool to Facilitate the Generation of Non-IID Datasets in a Controlled Way to Support Federated Learning Research

open access: yesIEEE Access
Federated Learning (FL) enables collaborative training of Machine Learning (ML) models across decentralized clients while preserving data privacy. One of the challenges that FL faces is when the clients’ data is not independent and identically ...
Daniel Mauricio Jimenez Gutierrez   +3 more
doaj   +1 more source

A Dirichlet-Multinomial Bayes Classifier for Disease Diagnosis with Microbial Compositions

open access: yesmSphere, 2017
Dysbiosis of microbial communities is associated with various human diseases, raising the possibility of using microbial compositions as biomarkers for disease diagnosis.
Xiang Gao, Huaiying Lin, Qunfeng Dong
doaj   +1 more source

On the sub-Gaussianity of the Beta and Dirichlet distributions

open access: yesElectronic Communications in Probability, 2017
13 pages, 2 ...
Marchal, Olivier, Arbel, Julyan
openaire   +5 more sources

Partial identification with categorical data and nonignorable missing outcomes

open access: yesCanadian Journal of Statistics, EarlyView.
Abstract Nonignorable missing outcomes are common in real‐world datasets and often require strong parametric assumptions to achieve identification. These assumptions can be implausible or untestable, and so we may wish to forgo them in favour of partially identified models that narrow the set of a priori possible values to an identification region.
Daniel Daly‐Grafstein, Paul Gustafson
wiley   +1 more source

A Maximum-Entropy Method to Estimate Discrete Distributions from Samples Ensuring Nonzero Probabilities

open access: yesEntropy, 2018
When constructing discrete (binned) distributions from samples of a data set, applications exist where it is desirable to assure that all bins of the sample distribution have nonzero probability.
Paul Darscheid, Anneli Guthke, Uwe Ehret
doaj   +1 more source

The Evolution of Environmental, Social, and Governance (ESG) and Risk and Its Implications for Sustainable Finance: A Systematic Literature Review

open access: yesCorporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT Recent literature addressing ESG and risk has increased by 70% since mid‐2022, reflecting a growing interest in sustainable finance. Guided by the PRISMA flow diagram, this paper employs a hybrid systematic review methodology, combining bibliometric analysis with content analysis, to provide a comprehensive overview of the evolution of ESG and
Fahad Asmi, Alain Neher, Alfred Wong
wiley   +1 more source

Bayesian and Quasi-Bayesian Estimators for Mutual Information from Discrete Data

open access: yesEntropy, 2013
Mutual information (MI) quantifies the statistical dependency between a pair of random variables, and plays a central role in the analysis of engineering and biological systems.
Il Memming Park   +2 more
doaj   +1 more source

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